Effect of Color Light Stimulation Using LED on Sleep Induction Time

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/jhe/volume-2017/6030268/figures/6030268.fig.004a.svgz" name="6030268.fig.004a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Experiment 1</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/jhe/volume-2017/6030268/figures/6030268.fig.004b.svgz" name="6030268.fig.004b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Experiment 2</td></tr></table>

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Journal of Healthcare Engineering

Effect of Color Light Stimulation Using LED on Sleep Induction Time

Figure 4